STRENGTHENED GLASS AND PRODUCTION METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a strengthened glass which is less likely to be broken even when impact is applied to an end face thereof, and a production method thereof.SOLUTION: The strengthened glass of the invention comprises on its surface, a compressive stress layer, and includes in the glass, foreign matters whose particle diameter is 0.1-100 μm.SELECTED DRAWING: Figure 1